Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
b6ba6518 KB |
2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
3 | 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. | |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #include "defs.h" | |
c906108c SS |
23 | #include "top.h" |
24 | #include "target.h" | |
25 | #include "inferior.h" | |
1adeb98a FN |
26 | #include "symfile.h" |
27 | #include "gdbcore.h" | |
c906108c SS |
28 | |
29 | #include "getopt.h" | |
30 | ||
31 | #include <sys/types.h> | |
32 | #include "gdb_stat.h" | |
33 | #include <ctype.h> | |
34 | ||
35 | #include "gdb_string.h" | |
9e0b60a8 | 36 | #include "event-loop.h" |
8b93c638 | 37 | #include "ui-out.h" |
da59e081 JM |
38 | #if defined (TUI) || defined (GDBTK) |
39 | /* FIXME: cagney/2000-01-31: This #include is to allow older code such | |
40 | as that found in the TUI to continue to build. */ | |
41 | #include "tui/tui-file.h" | |
42 | #endif | |
c906108c | 43 | |
c906108c SS |
44 | /* If nonzero, display time usage both at startup and for each command. */ |
45 | ||
46 | int display_time; | |
47 | ||
48 | /* If nonzero, display space usage both at startup and for each command. */ | |
49 | ||
50 | int display_space; | |
51 | ||
cd0fc7c3 | 52 | /* Whether this is the async version or not. The async version is |
c5aa993b JM |
53 | invoked on the command line with the -nw --async options. In this |
54 | version, the usual command_loop is substituted by and event loop which | |
55 | processes UI events asynchronously. */ | |
6426a772 | 56 | int event_loop_p = 1; |
cd0fc7c3 | 57 | |
fb40c209 AC |
58 | #ifdef UI_OUT |
59 | /* Has an interpreter been specified and if so, which. */ | |
60 | char *interpreter_p; | |
61 | #endif | |
62 | ||
c906108c SS |
63 | /* Whether this is the command line version or not */ |
64 | int tui_version = 0; | |
65 | ||
66 | /* Whether xdb commands will be handled */ | |
67 | int xdb_commands = 0; | |
68 | ||
69 | /* Whether dbx commands will be handled */ | |
70 | int dbx_commands = 0; | |
71 | ||
d9fcf2fb JM |
72 | struct ui_file *gdb_stdout; |
73 | struct ui_file *gdb_stderr; | |
74 | struct ui_file *gdb_stdlog; | |
75 | struct ui_file *gdb_stdtarg; | |
c906108c | 76 | |
2acceee2 JM |
77 | /* Used to initialize error() - defined in utils.c */ |
78 | ||
79 | extern void error_init (void); | |
80 | ||
c906108c SS |
81 | /* Whether to enable writing into executable and core files */ |
82 | extern int write_files; | |
83 | ||
d9fcf2fb | 84 | static void print_gdb_help (struct ui_file *); |
c906108c SS |
85 | |
86 | /* These two are used to set the external editor commands when gdb is farming | |
87 | out files to be edited by another program. */ | |
88 | ||
89 | extern int enable_external_editor; | |
c5aa993b | 90 | extern char *external_editor_command; |
c906108c SS |
91 | |
92 | #ifdef __CYGWIN__ | |
c5aa993b JM |
93 | #include <windows.h> /* for MAX_PATH */ |
94 | #include <sys/cygwin.h> /* for cygwin32_conv_to_posix_path */ | |
c906108c SS |
95 | #endif |
96 | ||
11cf8741 JM |
97 | /* Call command_loop. If it happens to return, pass that through as a |
98 | non-zero return status. */ | |
99 | ||
100 | static int | |
101 | captured_command_loop (void *data) | |
c906108c | 102 | { |
11cf8741 JM |
103 | if (command_loop_hook == NULL) |
104 | command_loop (); | |
105 | else | |
106 | command_loop_hook (); | |
107 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton | |
108 | would clean things up (restoring the cleanup chain) to the state | |
109 | they were just prior to the call. Technically, this means that | |
e26cc349 | 110 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
111 | are not that well behaved. do_cleanups should either be replaced |
112 | with a do_cleanups call (to cover the problem) or an assertion | |
113 | check to detect bad FUNCs code. */ | |
114 | do_cleanups (ALL_CLEANUPS); | |
115 | /* If the command_loop returned, normally (rather than threw an | |
116 | error) we try to quit. If the quit is aborted, catch_errors() | |
117 | which called this catch the signal and restart the command | |
118 | loop. */ | |
119 | quit_command (NULL, instream == stdin); | |
120 | return 1; | |
121 | } | |
122 | ||
123 | struct captured_main_args | |
124 | { | |
125 | int argc; | |
126 | char **argv; | |
127 | }; | |
128 | ||
129 | static int | |
130 | captured_main (void *data) | |
131 | { | |
132 | struct captured_main_args *context = data; | |
133 | int argc = context->argc; | |
134 | char **argv = context->argv; | |
c906108c SS |
135 | int count; |
136 | static int quiet = 0; | |
137 | static int batch = 0; | |
138 | ||
139 | /* Pointers to various arguments from command line. */ | |
140 | char *symarg = NULL; | |
141 | char *execarg = NULL; | |
142 | char *corearg = NULL; | |
143 | char *cdarg = NULL; | |
144 | char *ttyarg = NULL; | |
145 | ||
146 | /* These are static so that we can take their address in an initializer. */ | |
147 | static int print_help; | |
148 | static int print_version; | |
149 | ||
150 | /* Pointers to all arguments of --command option. */ | |
151 | char **cmdarg; | |
152 | /* Allocated size of cmdarg. */ | |
153 | int cmdsize; | |
154 | /* Number of elements of cmdarg used. */ | |
155 | int ncmd; | |
156 | ||
157 | /* Indices of all arguments of --directory option. */ | |
158 | char **dirarg; | |
159 | /* Allocated size. */ | |
160 | int dirsize; | |
161 | /* Number of elements used. */ | |
162 | int ndir; | |
c5aa993b | 163 | |
c906108c SS |
164 | struct stat homebuf, cwdbuf; |
165 | char *homedir, *homeinit; | |
166 | ||
167 | register int i; | |
168 | ||
169 | long time_at_startup = get_run_time (); | |
170 | ||
c906108c SS |
171 | START_PROGRESS (argv[0], 0); |
172 | ||
173 | #ifdef MPW | |
174 | /* Do all Mac-specific setup. */ | |
175 | mac_init (); | |
176 | #endif /* MPW */ | |
177 | ||
178 | /* This needs to happen before the first use of malloc. */ | |
179 | init_malloc ((PTR) NULL); | |
180 | ||
181 | #if defined (ALIGN_STACK_ON_STARTUP) | |
182 | i = (int) &count & 0x3; | |
183 | if (i != 0) | |
184 | alloca (4 - i); | |
185 | #endif | |
186 | ||
c906108c SS |
187 | cmdsize = 1; |
188 | cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg)); | |
189 | ncmd = 0; | |
190 | dirsize = 1; | |
191 | dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); | |
192 | ndir = 0; | |
193 | ||
194 | quit_flag = 0; | |
195 | line = (char *) xmalloc (linesize); | |
196 | line[0] = '\0'; /* Terminate saved (now empty) cmd line */ | |
197 | instream = stdin; | |
198 | ||
199 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
200 | current_directory = gdb_dirbuf; | |
201 | ||
da59e081 JM |
202 | #if defined (TUI) || defined (GDBTK) |
203 | /* Older code uses the tui_file and fputs_unfiltered_hook(). It | |
d9fcf2fb | 204 | should be using a customized UI_FILE object and re-initializing |
da59e081 | 205 | within its own _initialize function. */ |
ac9a91a7 JM |
206 | gdb_stdout = tui_fileopen (stdout); |
207 | gdb_stderr = tui_fileopen (stderr); | |
c5aa993b JM |
208 | gdb_stdlog = gdb_stdout; /* for moment */ |
209 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
da59e081 JM |
210 | #else |
211 | gdb_stdout = stdio_fileopen (stdout); | |
212 | gdb_stderr = stdio_fileopen (stderr); | |
213 | gdb_stdlog = gdb_stderr; /* for moment */ | |
214 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
ac9a91a7 | 215 | #endif |
c906108c | 216 | |
2acceee2 JM |
217 | /* initialize error() */ |
218 | error_init (); | |
219 | ||
c906108c SS |
220 | /* Parse arguments and options. */ |
221 | { | |
222 | int c; | |
223 | /* When var field is 0, use flag field to record the equivalent | |
224 | short option (or arbitrary numbers starting at 10 for those | |
225 | with no equivalent). */ | |
226 | static struct option long_options[] = | |
c5aa993b | 227 | { |
6426a772 JM |
228 | {"async", no_argument, &event_loop_p, 1}, |
229 | {"noasync", no_argument, &event_loop_p, 0}, | |
c906108c | 230 | #if defined(TUI) |
c5aa993b | 231 | {"tui", no_argument, &tui_version, 1}, |
c906108c | 232 | #endif |
c5aa993b JM |
233 | {"xdb", no_argument, &xdb_commands, 1}, |
234 | {"dbx", no_argument, &dbx_commands, 1}, | |
235 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
236 | {"r", no_argument, &readnow_symbol_files, 1}, | |
237 | {"mapped", no_argument, &mapped_symbol_files, 1}, | |
238 | {"m", no_argument, &mapped_symbol_files, 1}, | |
239 | {"quiet", no_argument, &quiet, 1}, | |
240 | {"q", no_argument, &quiet, 1}, | |
241 | {"silent", no_argument, &quiet, 1}, | |
242 | {"nx", no_argument, &inhibit_gdbinit, 1}, | |
243 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
244 | {"batch", no_argument, &batch, 1}, | |
245 | {"epoch", no_argument, &epoch_interface, 1}, | |
246 | ||
247 | /* This is a synonym for "--annotate=1". --annotate is now preferred, | |
248 | but keep this here for a long time because people will be running | |
249 | emacses which use --fullname. */ | |
250 | {"fullname", no_argument, 0, 'f'}, | |
251 | {"f", no_argument, 0, 'f'}, | |
252 | ||
253 | {"annotate", required_argument, 0, 12}, | |
254 | {"help", no_argument, &print_help, 1}, | |
255 | {"se", required_argument, 0, 10}, | |
256 | {"symbols", required_argument, 0, 's'}, | |
257 | {"s", required_argument, 0, 's'}, | |
258 | {"exec", required_argument, 0, 'e'}, | |
259 | {"e", required_argument, 0, 'e'}, | |
260 | {"core", required_argument, 0, 'c'}, | |
261 | {"c", required_argument, 0, 'c'}, | |
262 | {"command", required_argument, 0, 'x'}, | |
263 | {"version", no_argument, &print_version, 1}, | |
264 | {"x", required_argument, 0, 'x'}, | |
3fc11d3e JM |
265 | #ifdef GDBTK |
266 | {"tclcommand", required_argument, 0, 'z'}, | |
267 | {"enable-external-editor", no_argument, 0, 'y'}, | |
268 | {"editor-command", required_argument, 0, 'w'}, | |
269 | #endif | |
fb40c209 | 270 | #ifdef UI_OUT |
8b93c638 JM |
271 | {"ui", required_argument, 0, 'i'}, |
272 | {"interpreter", required_argument, 0, 'i'}, | |
273 | {"i", required_argument, 0, 'i'}, | |
fb40c209 | 274 | #endif |
c5aa993b | 275 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 276 | {"d", required_argument, 0, 'd'}, |
c5aa993b JM |
277 | {"cd", required_argument, 0, 11}, |
278 | {"tty", required_argument, 0, 't'}, | |
279 | {"baud", required_argument, 0, 'b'}, | |
280 | {"b", required_argument, 0, 'b'}, | |
281 | {"nw", no_argument, &use_windows, 0}, | |
282 | {"nowindows", no_argument, &use_windows, 0}, | |
283 | {"w", no_argument, &use_windows, 1}, | |
284 | {"windows", no_argument, &use_windows, 1}, | |
285 | {"statistics", no_argument, 0, 13}, | |
286 | {"write", no_argument, &write_files, 1}, | |
c906108c SS |
287 | /* Allow machine descriptions to add more options... */ |
288 | #ifdef ADDITIONAL_OPTIONS | |
c5aa993b | 289 | ADDITIONAL_OPTIONS |
c906108c | 290 | #endif |
c5aa993b JM |
291 | {0, no_argument, 0, 0} |
292 | }; | |
c906108c SS |
293 | |
294 | while (1) | |
295 | { | |
296 | int option_index; | |
297 | ||
298 | c = getopt_long_only (argc, argv, "", | |
299 | long_options, &option_index); | |
300 | if (c == EOF) | |
301 | break; | |
302 | ||
303 | /* Long option that takes an argument. */ | |
304 | if (c == 0 && long_options[option_index].flag == 0) | |
305 | c = long_options[option_index].val; | |
306 | ||
307 | switch (c) | |
308 | { | |
309 | case 0: | |
310 | /* Long option that just sets a flag. */ | |
311 | break; | |
312 | case 10: | |
313 | symarg = optarg; | |
314 | execarg = optarg; | |
315 | break; | |
316 | case 11: | |
317 | cdarg = optarg; | |
318 | break; | |
319 | case 12: | |
320 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ | |
321 | annotation_level = atoi (optarg); | |
322 | break; | |
323 | case 13: | |
324 | /* Enable the display of both time and space usage. */ | |
325 | display_time = 1; | |
326 | display_space = 1; | |
327 | break; | |
328 | case 'f': | |
329 | annotation_level = 1; | |
330 | /* We have probably been invoked from emacs. Disable window interface. */ | |
331 | use_windows = 0; | |
332 | break; | |
333 | case 's': | |
334 | symarg = optarg; | |
335 | break; | |
336 | case 'e': | |
337 | execarg = optarg; | |
338 | break; | |
339 | case 'c': | |
340 | corearg = optarg; | |
341 | break; | |
342 | case 'x': | |
343 | cmdarg[ncmd++] = optarg; | |
344 | if (ncmd >= cmdsize) | |
345 | { | |
346 | cmdsize *= 2; | |
c5aa993b | 347 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
348 | cmdsize * sizeof (*cmdarg)); |
349 | } | |
350 | break; | |
3fc11d3e JM |
351 | #ifdef GDBTK |
352 | case 'z': | |
353 | { | |
a14ed312 | 354 | extern int gdbtk_test (char *); |
3fc11d3e JM |
355 | if (!gdbtk_test (optarg)) |
356 | { | |
357 | fprintf_unfiltered (gdb_stderr, "%s: unable to load tclcommand file \"%s\"", | |
358 | argv[0], optarg); | |
359 | exit (1); | |
360 | } | |
361 | break; | |
362 | } | |
363 | case 'y': | |
364 | { | |
365 | /* | |
366 | * This enables the edit/button in the main window, even | |
367 | * when IDE_ENABLED is set to false. In this case you must | |
368 | * use --tclcommand to specify a tcl/script to be called, | |
369 | * Tcl/Variable to store the edit/command is: | |
370 | * external_editor | |
371 | */ | |
372 | enable_external_editor = 1; | |
373 | break; | |
374 | } | |
375 | case 'w': | |
376 | { | |
377 | /* | |
378 | * if editor command is enabled, both flags are set | |
379 | */ | |
380 | enable_external_editor = 1; | |
381 | external_editor_command = xstrdup (optarg); | |
382 | break; | |
383 | } | |
384 | #endif /* GDBTK */ | |
fb40c209 AC |
385 | #ifdef UI_OUT |
386 | case 'i': | |
387 | interpreter_p = optarg; | |
388 | break; | |
389 | #endif | |
c906108c SS |
390 | case 'd': |
391 | dirarg[ndir++] = optarg; | |
392 | if (ndir >= dirsize) | |
393 | { | |
394 | dirsize *= 2; | |
c5aa993b | 395 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
396 | dirsize * sizeof (*dirarg)); |
397 | } | |
398 | break; | |
399 | case 't': | |
400 | ttyarg = optarg; | |
401 | break; | |
402 | case 'q': | |
403 | quiet = 1; | |
404 | break; | |
405 | case 'b': | |
406 | { | |
407 | int i; | |
408 | char *p; | |
409 | ||
410 | i = strtol (optarg, &p, 0); | |
411 | if (i == 0 && p == optarg) | |
412 | ||
413 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 414 | current_target) until after initialize_all_files(). */ |
c906108c SS |
415 | |
416 | fprintf_unfiltered | |
417 | (gdb_stderr, | |
418 | "warning: could not set baud rate to `%s'.\n", optarg); | |
419 | else | |
420 | baud_rate = i; | |
421 | } | |
422 | case 'l': | |
423 | { | |
424 | int i; | |
425 | char *p; | |
426 | ||
427 | i = strtol (optarg, &p, 0); | |
428 | if (i == 0 && p == optarg) | |
429 | ||
430 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 431 | current_target) until after initialize_all_files(). */ |
c906108c SS |
432 | |
433 | fprintf_unfiltered | |
434 | (gdb_stderr, | |
c5aa993b | 435 | "warning: could not set timeout limit to `%s'.\n", optarg); |
c906108c SS |
436 | else |
437 | remote_timeout = i; | |
438 | } | |
439 | break; | |
440 | ||
441 | #ifdef ADDITIONAL_OPTION_CASES | |
c5aa993b | 442 | ADDITIONAL_OPTION_CASES |
c906108c SS |
443 | #endif |
444 | case '?': | |
445 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
446 | "Use `%s --help' for a complete list of options.\n", |
447 | argv[0]); | |
c906108c SS |
448 | exit (1); |
449 | } | |
450 | } | |
451 | ||
452 | /* If --help or --version, disable window interface. */ | |
453 | if (print_help || print_version) | |
454 | { | |
455 | use_windows = 0; | |
456 | #ifdef TUI | |
457 | /* Disable the TUI as well. */ | |
458 | tui_version = 0; | |
459 | #endif | |
460 | } | |
461 | ||
462 | #ifdef TUI | |
463 | /* An explicit --tui flag overrides the default UI, which is the | |
464 | window system. */ | |
465 | if (tui_version) | |
466 | use_windows = 0; | |
c5aa993b | 467 | #endif |
c906108c SS |
468 | |
469 | /* OK, that's all the options. The other arguments are filenames. */ | |
470 | count = 0; | |
471 | for (; optind < argc; optind++) | |
472 | switch (++count) | |
473 | { | |
474 | case 1: | |
475 | symarg = argv[optind]; | |
476 | execarg = argv[optind]; | |
477 | break; | |
478 | case 2: | |
1adeb98a | 479 | /* FIXME: The documentation says this can be a "ProcID". as well. */ |
c906108c SS |
480 | corearg = argv[optind]; |
481 | break; | |
482 | case 3: | |
483 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
484 | "Excess command line arguments ignored. (%s%s)\n", |
485 | argv[optind], (optind == argc - 1) ? "" : " ..."); | |
c906108c SS |
486 | break; |
487 | } | |
488 | if (batch) | |
489 | quiet = 1; | |
490 | } | |
491 | ||
492 | #if defined(TUI) | |
0f71a2f6 | 493 | /* Should this be moved to tui-top.c:_initialize_tui()? */ |
c906108c SS |
494 | if (tui_version) |
495 | init_ui_hook = tuiInit; | |
496 | #endif | |
0f71a2f6 JM |
497 | |
498 | /* Initialize all files. Give the interpreter a chance to take | |
499 | control of the console via the init_ui_hook()) */ | |
c906108c SS |
500 | gdb_init (argv[0]); |
501 | ||
502 | /* Do these (and anything which might call wrap_here or *_filtered) | |
503 | after initialize_all_files. */ | |
504 | if (print_version) | |
505 | { | |
506 | print_gdb_version (gdb_stdout); | |
507 | wrap_here (""); | |
508 | printf_filtered ("\n"); | |
509 | exit (0); | |
510 | } | |
511 | ||
512 | if (print_help) | |
513 | { | |
514 | print_gdb_help (gdb_stdout); | |
515 | fputs_unfiltered ("\n", gdb_stdout); | |
516 | exit (0); | |
517 | } | |
518 | ||
519 | if (!quiet) | |
520 | { | |
521 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 522 | to read a symbol file (possibly slowly). */ |
c906108c SS |
523 | print_gdb_version (gdb_stdout); |
524 | if (symarg) | |
525 | printf_filtered (".."); | |
c5aa993b JM |
526 | wrap_here (""); |
527 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
528 | } |
529 | ||
530 | error_pre_print = "\n\n"; | |
531 | quit_pre_print = error_pre_print; | |
532 | ||
533 | /* We may get more than one warning, don't double space all of them... */ | |
534 | warning_pre_print = "\nwarning: "; | |
535 | ||
536 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
537 | *before* all the command line arguments are processed; it sets | |
538 | global parameters, which are independent of what file you are | |
539 | debugging or what directory you are in. */ | |
540 | #ifdef __CYGWIN32__ | |
541 | { | |
c5aa993b JM |
542 | char *tmp = getenv ("HOME"); |
543 | ||
c906108c SS |
544 | if (tmp != NULL) |
545 | { | |
c5aa993b JM |
546 | homedir = (char *) alloca (MAX_PATH + 1); |
547 | cygwin32_conv_to_posix_path (tmp, homedir); | |
c906108c SS |
548 | } |
549 | else | |
550 | homedir = NULL; | |
551 | } | |
552 | #else | |
c5aa993b | 553 | homedir = getenv ("HOME"); |
c906108c SS |
554 | #endif |
555 | if (homedir) | |
556 | { | |
557 | homeinit = (char *) alloca (strlen (homedir) + | |
558 | strlen (gdbinit) + 10); | |
559 | strcpy (homeinit, homedir); | |
560 | strcat (homeinit, "/"); | |
561 | strcat (homeinit, gdbinit); | |
562 | ||
563 | if (!inhibit_gdbinit) | |
564 | { | |
11cf8741 | 565 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 566 | } |
c906108c SS |
567 | |
568 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
569 | need them if homedir is set. Make sure that they are |
570 | zero in case one of them fails (this guarantees that they | |
571 | won't match if either exists). */ | |
572 | ||
c906108c SS |
573 | memset (&homebuf, 0, sizeof (struct stat)); |
574 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 575 | |
c906108c | 576 | stat (homeinit, &homebuf); |
c5aa993b JM |
577 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
578 | homedir was set. */ | |
c906108c SS |
579 | } |
580 | ||
581 | /* Now perform all the actions indicated by the arguments. */ | |
582 | if (cdarg != NULL) | |
583 | { | |
11cf8741 | 584 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 585 | } |
c906108c SS |
586 | |
587 | for (i = 0; i < ndir; i++) | |
11cf8741 | 588 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
b8c9b27d | 589 | xfree (dirarg); |
c906108c SS |
590 | |
591 | if (execarg != NULL | |
592 | && symarg != NULL | |
593 | && STREQ (execarg, symarg)) | |
594 | { | |
11cf8741 JM |
595 | /* The exec file and the symbol-file are the same. If we can't |
596 | open it, better only print one error message. | |
597 | catch_command_errors returns non-zero on success! */ | |
1adeb98a FN |
598 | if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL)) |
599 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
600 | } |
601 | else | |
602 | { | |
603 | if (execarg != NULL) | |
1adeb98a | 604 | catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 605 | if (symarg != NULL) |
1adeb98a | 606 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); |
c906108c | 607 | } |
c906108c SS |
608 | |
609 | /* After the symbol file has been read, print a newline to get us | |
610 | beyond the copyright line... But errors should still set off | |
611 | the error message with a (single) blank line. */ | |
612 | if (!quiet) | |
613 | printf_filtered ("\n"); | |
614 | error_pre_print = "\n"; | |
615 | quit_pre_print = error_pre_print; | |
616 | warning_pre_print = "\nwarning: "; | |
617 | ||
618 | if (corearg != NULL) | |
619 | { | |
11cf8741 JM |
620 | if (catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL) == 0) |
621 | { | |
622 | /* See if the core file is really a PID. */ | |
623 | if (isdigit (corearg[0])) | |
624 | catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL); | |
625 | } | |
c906108c | 626 | } |
c906108c SS |
627 | |
628 | if (ttyarg != NULL) | |
11cf8741 | 629 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c SS |
630 | |
631 | #ifdef ADDITIONAL_OPTION_HANDLER | |
632 | ADDITIONAL_OPTION_HANDLER; | |
633 | #endif | |
634 | ||
635 | /* Error messages should no longer be distinguished with extra output. */ | |
636 | error_pre_print = NULL; | |
637 | quit_pre_print = NULL; | |
638 | warning_pre_print = "warning: "; | |
639 | ||
640 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
641 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 642 | |
c906108c SS |
643 | if (!homedir |
644 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
645 | if (!inhibit_gdbinit) | |
646 | { | |
11cf8741 | 647 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 648 | } |
c906108c SS |
649 | |
650 | for (i = 0; i < ncmd; i++) | |
651 | { | |
11cf8741 JM |
652 | #if 0 |
653 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
654 | expanded into a call to setjmp(). */ | |
655 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 656 | { |
b83266a0 SS |
657 | /* NOTE: I am commenting this out, because it is not clear |
658 | where this feature is used. It is very old and | |
c5aa993b | 659 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 660 | #if 0 |
c906108c SS |
661 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
662 | read_command_file (stdin); | |
663 | else | |
b83266a0 | 664 | #endif |
c906108c SS |
665 | source_command (cmdarg[i], !batch); |
666 | do_cleanups (ALL_CLEANUPS); | |
667 | } | |
11cf8741 JM |
668 | #endif |
669 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 670 | } |
b8c9b27d | 671 | xfree (cmdarg); |
c906108c SS |
672 | |
673 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 674 | init_history (); |
c906108c SS |
675 | |
676 | if (batch) | |
677 | { | |
678 | /* We have hit the end of the batch file. */ | |
679 | exit (0); | |
680 | } | |
681 | ||
682 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
683 | to force the user to set a nindy target and spec its parameters. */ | |
684 | ||
685 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
686 | BEFORE_MAIN_LOOP_HOOK; | |
687 | #endif | |
688 | ||
689 | END_PROGRESS (argv[0]); | |
690 | ||
691 | /* Show time and/or space usage. */ | |
692 | ||
693 | if (display_time) | |
694 | { | |
695 | long init_time = get_run_time () - time_at_startup; | |
696 | ||
697 | printf_unfiltered ("Startup time: %ld.%06ld\n", | |
698 | init_time / 1000000, init_time % 1000000); | |
699 | } | |
700 | ||
701 | if (display_space) | |
702 | { | |
703 | #ifdef HAVE_SBRK | |
704 | extern char **environ; | |
705 | char *lim = (char *) sbrk (0); | |
706 | ||
707 | printf_unfiltered ("Startup size: data size %ld\n", | |
708 | (long) (lim - (char *) &environ)); | |
709 | #endif | |
710 | } | |
711 | ||
712 | /* The default command loop. | |
713 | The WIN32 Gui calls this main to set up gdb's state, and | |
714 | has its own command loop. */ | |
715 | #if !defined _WIN32 || defined __GNUC__ | |
11cf8741 JM |
716 | /* GUIs generally have their own command loop, mainloop, or |
717 | whatever. This is a good place to gain control because many | |
718 | error conditions will end up here via longjmp(). */ | |
719 | #if 0 | |
720 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
721 | while (1) |
722 | { | |
723 | if (!SET_TOP_LEVEL ()) | |
724 | { | |
c5aa993b | 725 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
c906108c SS |
726 | /* GUIs generally have their own command loop, mainloop, or whatever. |
727 | This is a good place to gain control because many error | |
728 | conditions will end up here via longjmp(). */ | |
729 | if (command_loop_hook) | |
730 | command_loop_hook (); | |
731 | else | |
732 | command_loop (); | |
c5aa993b | 733 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
734 | } |
735 | } | |
11cf8741 JM |
736 | /* NOTE: If the command_loop() returned normally, the loop would |
737 | attempt to exit by calling the function quit_command(). That | |
738 | function would either call exit() or throw an error returning | |
739 | control to SET_TOP_LEVEL. */ | |
740 | /* NOTE: The function do_cleanups() was called once each time round | |
741 | the loop. The usefulness of the call isn't clear. If an error | |
742 | was thrown, everything would have already been cleaned up. If | |
743 | command_loop() returned normally and quit_command() was called, | |
744 | either exit() or error() (again cleaning up) would be called. */ | |
745 | #endif | |
746 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
747 | moving this loop and the code found in captured_command_loop() | |
748 | into the command_loop() proper. The main thing holding back that | |
749 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
750 | while (1) | |
751 | { | |
752 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
753 | } | |
c906108c | 754 | #endif |
11cf8741 JM |
755 | /* No exit -- exit is through quit_command. */ |
756 | } | |
c906108c | 757 | |
11cf8741 JM |
758 | int |
759 | main (int argc, char **argv) | |
760 | { | |
11cf8741 JM |
761 | struct captured_main_args args; |
762 | args.argc = argc; | |
763 | args.argv = argv; | |
764 | catch_errors (captured_main, &args, "", RETURN_MASK_ALL); | |
765 | return 0; | |
c906108c SS |
766 | } |
767 | ||
11cf8741 | 768 | |
c906108c SS |
769 | /* Don't use *_filtered for printing help. We don't want to prompt |
770 | for continue no matter how small the screen or how much we're going | |
771 | to print. */ | |
772 | ||
773 | static void | |
d9fcf2fb | 774 | print_gdb_help (struct ui_file *stream) |
c906108c | 775 | { |
c5aa993b | 776 | fputs_unfiltered ("\ |
c906108c SS |
777 | This is the GNU debugger. Usage:\n\n\ |
778 | gdb [options] [executable-file [core-file or process-id]]\n\n\ | |
779 | Options:\n\n\ | |
0f71a2f6 | 780 | ", stream); |
c5aa993b | 781 | fputs_unfiltered ("\ |
0f71a2f6 | 782 | --[no]async Enable (disable) asynchronous version of CLI\n\ |
c906108c | 783 | ", stream); |
c5aa993b | 784 | fputs_unfiltered ("\ |
c906108c SS |
785 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
786 | --batch Exit after processing options.\n\ | |
787 | --cd=DIR Change current directory to DIR.\n\ | |
788 | --command=FILE Execute GDB commands from FILE.\n\ | |
789 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
790 | ", stream); | |
c5aa993b | 791 | fputs_unfiltered ("\ |
c906108c SS |
792 | --dbx DBX compatibility mode.\n\ |
793 | --directory=DIR Search for source files in DIR.\n\ | |
794 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
795 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
796 | --fullname Output information used by emacs-GDB interface.\n\ | |
797 | --help Print this message.\n\ | |
8b93c638 JM |
798 | ", stream); |
799 | fputs_unfiltered ("\ | |
800 | --interpreter=INTERP\n\ | |
801 | Select a specific interpreter / user interface\n\ | |
c906108c | 802 | ", stream); |
c5aa993b | 803 | fputs_unfiltered ("\ |
c906108c SS |
804 | --mapped Use mapped symbol files if supported on this system.\n\ |
805 | --nw Do not use a window interface.\n\ | |
96baa820 JM |
806 | --nx Do not read ", stream); |
807 | fputs_unfiltered (gdbinit, stream); | |
808 | fputs_unfiltered (" file.\n\ | |
c906108c SS |
809 | --quiet Do not print version number on startup.\n\ |
810 | --readnow Fully read symbol files on first access.\n\ | |
811 | ", stream); | |
c5aa993b | 812 | fputs_unfiltered ("\ |
c906108c SS |
813 | --se=FILE Use FILE as symbol file and executable file.\n\ |
814 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
815 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ | |
816 | ", stream); | |
817 | #if defined(TUI) | |
c5aa993b | 818 | fputs_unfiltered ("\ |
c906108c SS |
819 | --tui Use a terminal user interface.\n\ |
820 | ", stream); | |
821 | #endif | |
c5aa993b | 822 | fputs_unfiltered ("\ |
c906108c SS |
823 | --version Print version information and then exit.\n\ |
824 | -w Use a window interface.\n\ | |
825 | --write Set writing into executable and core files.\n\ | |
826 | --xdb XDB compatibility mode.\n\ | |
827 | ", stream); | |
828 | #ifdef ADDITIONAL_OPTION_HELP | |
c5aa993b | 829 | fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream); |
c906108c | 830 | #endif |
c5aa993b | 831 | fputs_unfiltered ("\n\ |
c906108c SS |
832 | For more information, type \"help\" from within GDB, or consult the\n\ |
833 | GDB manual (available as on-line info or a printed manual).\n\ | |
2df3850c | 834 | Report bugs to \"bug-gdb@gnu.org\".\ |
c906108c SS |
835 | ", stream); |
836 | } |